#OTD in 2015: #Rosetta's #ValentinesDay close encounter with comet #67P. @ESAscience #ImageoftheWeek https://t.co/75z6bFnrCX pic.twitter.com/u9UHK4pGvk
— ESA (@esa) February 14, 2017
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#OTD in 2015: #Rosetta's #ValentinesDay close encounter with comet #67P. @ESAscience #ImageoftheWeek https://t.co/75z6bFnrCX pic.twitter.com/u9UHK4pGvk
— ESA (@esa) February 14, 2017